qt5base-lts/examples/xml/saxbookmarks/xbelgenerator.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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****************************************************************************/
#include <QtWidgets>
#include "xbelgenerator.h"
XbelGenerator::XbelGenerator(QTreeWidget *treeWidget)
: treeWidget(treeWidget)
{
}
bool XbelGenerator::write(QIODevice *device)
{
out.setDevice(device);
out.setCodec("UTF-8");
out << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
<< "<!DOCTYPE xbel>\n"
<< "<xbel version=\"1.0\">\n";
for (int i = 0; i < treeWidget->topLevelItemCount(); ++i)
generateItem(treeWidget->topLevelItem(i), 1);
out << "</xbel>\n";
return true;
}
QString XbelGenerator::indent(int depth)
{
const int IndentSize = 4;
return QString(IndentSize * depth, ' ');
}
QString XbelGenerator::escapedText(const QString &str)
{
QString result = str;
result.replace("&", "&amp;");
result.replace("<", "&lt;");
result.replace(">", "&gt;");
return result;
}
QString XbelGenerator::escapedAttribute(const QString &str)
{
QString result = escapedText(str);
result.replace("\"", "&quot;");
result.prepend("\"");
result.append("\"");
return result;
}
void XbelGenerator::generateItem(QTreeWidgetItem *item, int depth)
{
QString tagName = item->data(0, Qt::UserRole).toString();
if (tagName == "folder") {
bool folded = !treeWidget->isItemExpanded(item);
out << indent(depth) << "<folder folded=\"" << (folded ? "yes" : "no")
<< "\">\n"
<< indent(depth + 1) << "<title>" << escapedText(item->text(0))
<< "</title>\n";
for (int i = 0; i < item->childCount(); ++i)
generateItem(item->child(i), depth + 1);
out << indent(depth) << "</folder>\n";
} else if (tagName == "bookmark") {
out << indent(depth) << "<bookmark";
if (!item->text(1).isEmpty())
out << " href=" << escapedAttribute(item->text(1));
out << ">\n"
<< indent(depth + 1) << "<title>" << escapedText(item->text(0))
<< "</title>\n"
<< indent(depth) << "</bookmark>\n";
} else if (tagName == "separator") {
out << indent(depth) << "<separator/>\n";
}
}